JavaScript Formatter / Minifier
Format, beautify and minify JavaScript code.
How to Use the JavaScript Formatter
Paste your JavaScript or TypeScript code into the input box, then click "Format" to pretty-print it with proper indentation, or "Minify" to compress it into a single line. Choose between 2-space, 4-space or tab indentation.
What This Tool Does
- Format / Beautify — adds indentation and line breaks around braces, brackets and semicolons for readability
- Minify — strips comments, collapses whitespace and removes unnecessary newlines to reduce file size
- Indent options — choose 2 spaces, 4 spaces or tabs to match your project style
The tool runs entirely in your browser using simple pattern-based formatting. No data is sent to any server.
Frequently Asked Questions
Does this tool support TypeScript?
Yes. The formatter works on both JavaScript and TypeScript code since it operates on the text structure (braces, semicolons, etc.) rather than parsing types.
What does the Minify button do?
Minify removes all comments, extra whitespace and newlines from your code. The result is a compact single-line string that is smaller in file size but harder to read.
Will formatting change how my code runs?
No. Formatting only changes whitespace and indentation. It does not alter the logic, variable names or execution behavior of your code.
Is there a size limit?
There is no hard limit, but very large files (over 1 MB) may be slow to process in the browser.
Does my code get uploaded anywhere?
No. All formatting and minification happens locally in your browser. Your code never leaves your device.
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